Train's speed confuses walkers (11)
I believe the answer is:
pedestrians
'walkers' is the definition.
('pedestrian' can be a synonym of 'walker')
'train's speed confuses' is the wordplay.
'confuses' indicates an anagram.
'trains'+'speed'='trainsspeed'
'trainsspeed' anagrammed gives 'PEDESTRIANS'.
(Another definition for pedestrians that I've seen is " those making slow progress?".)
Want a hint initially instead of a full solution?
Install my app